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MAGNESITE†

Chemical Identification
CAS #	546-93-0; 13717-00-5
Formula	MgCO₃
Synonyms	carbonate magnesium; hydromagnesite; magnesium carbonate; magnesium(II) carbonate

Physical Properties
Physical description	White, odorless, crystalline powder.
Boiling point	decomposes	Molecular weight	84.3
Freezing point/melting point	662°F (decomposes)	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	2.96	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1615 (total); request using analyte code 9135	M113 (resp); request using analyte code 9130
Sampling group
Sampler/Sampling media	Tared low-ash 37 mm PVC filter, 5 microns [SLTC108]	Tared low-ash 37 mm PVC filter, 5 microns, preceded by 10 mm nylon Dorr-Oliver cyclone for respirable samples. [SLTC108]
Sampling time^*	240-480 min	240-480 min
Sampling volume (TWA)^*	960 L	816 L
Sampling flow rate (TWA)^*	2 L/min	1.7 L/min ±5%
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	Gravimetric	Gravimetric
Method reference	OSHA PV2121 (partially validated)	OSHA PV2121 (partially validated)
Notes	Samples are analyzed gravimetrically. Results will be qualified based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes; no further work on the sample will be performed due to method limitations.	Samples are analyzed gravimetrically. Results will be qualified based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes; no further work on the sample will be performed due to method limitations. The standard applies to the Respirable Fraction.
Special requirements	FOR TOTAL DUST SAMPLES, DO NOT USE A CYCLONE!!!	Samples must be collected with a Dorr-Oliver cyclone.

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)	REL-TWA	10 mg/m³ (total), 5 mg/m³ (resp)	TLV-TWA		PEL-TWA	10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: See Appendix B: Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS)		Notes: as Particulates not otherwise regulated. See also footnote [n]
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Magnesite

NIOSH: Pocket Guide to Chemical Hazards - Magnesite

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) -Appendix B: Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS). See annual publication for most recent information.

Last Updated Date : 01/04/2021

CYCLOPENTADIENE†

Chemical Identification
CAS #	542-92-7
Formula	C₅H₆
Synonyms	1,3-cyclopentadiene

Physical Properties
Physical description	Colorless liquid with an irritating, terpene-like odor.
Boiling point	107°F	Molecular weight	66.1
Freezing point/melting point	-121°F	Vapor pressure	400 mmHg
Flash point	77°F (open cup)	Vapor density
Specific gravity	0.80	Ionization potential	8.56 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0845
Sampling group
Sampler/Sampling media	Chromosorb 104® (discontinued)
Sampling time^*
Sampling volume (TWA)^*	1-5 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 2523 (fully validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	75 ppm (200 mg/m³)	REL-TWA	75 ppm (200 mg/m³)	TLV-TWA	0.5 ppm [2018]	PEL-TWA	75 ppm (200 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL	1 ppm [2018]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	750 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Cyclopentadiene

NIOSH: Pocket Guide to Chemical Hazards - Cyclopentadiene

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Cyclopentadiene. See annual publication for most recent information.

Last Updated Date : 01/12/2023

BIS(CHLOROMETHYL) ETHER‡

Chemical Identification
CAS #	542-88-1
Formula	C₂H₄Cl₂O
Synonyms	BCME; bis-CME; chloromethyl ether; dichlorodimethyl ether; dichloromethyl ether; oxybis(chloromethane)

Physical Properties
Physical description	Colorless liquid with a suffocating odor.
Boiling point	223°F	Molecular weight	115
Freezing point/melting point	-43°F	Vapor pressure	30 mmHg at 72°F
Flash point	<66°F	Vapor density
Specific gravity	1.32	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	4	NFPA fire rating	3
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2630
Sampling group
Sampler/Sampling media	Midget fritted glass bubbler (MFGB) containing 10 mL (Derivatizing reagent: 2,4,6-Trichlorophenol/Sodium methoxide) [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-5100]
Sampling time^*
Sampling volume (TWA)^*	50 L
Sampling flow rate (TWA)^*	0.5 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-ECD
Method reference	OSHA 10 (fully validated)
Notes	Derivatizing reagent: 16 grams of 2,4,6-Trichlorophenol and 4.4 grams of Sodium Methoxide dissolved in 1 Liter of Methanol. OSHA personnel may obtain sampling solution from the SLTC.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	Ca	REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1003, 13 Carcinogens.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A and Appendix B - 13 OSHA-regulated carcinogens.		Notes: Visit the ACGIH TLV site for specific data		Notes: See California Code of Regulations, Title 8, Section 5209. Carcinogens.
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A1, EPA-A		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: --/0.1 ppm/0.5 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dichlorodimethyl ether, symmetrical

NIOSH: Pocket Guide to Chemical Hazards - bis-Chloromethyl ether

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - bis(Chloromethyl) ether. See annual publication for most recent information.
EPA Air Toxics Website: bis(Chloromethyl)ether (BCME). U.S. Environmental Protection Agency Technology Transfer Network.
No Author: bis(Chloromethyl) Ether and Technical-Grade Chloromethyl Methyl Ether (CAS Nos. 542-88-1 and 107-30-2). Report on Carcinogens (latest edition); U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program.
Pohanish, R.P. (editor): Bis(Chloromethyl) Ether. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 345-348.
Weiss, W. and Nash, D.: An epidemic of lung cancer due to chloromethyl ethers. 30 years of observation. J. Occup. Environ. Med. 39(10): 1003-1009, 1997.

Last Updated Date : 05/03/2024

1,3-DICHLOROPROPENE

Chemical Identification
CAS #	542-75-6
Formula	C₃H₄Cl₂
Synonyms	3-chloroallyl chloride; DCP; 1,3-dichloro-1-propene; 1,3-dichloropropylene; telone

Physical Properties
Physical description	Colorless to straw-colored liquid with a sharp, sweet, irritating, chloroform-like odor.
Boiling point	226°F	Molecular weight	111.0
Freezing point/melting point	-119°F	Vapor pressure	28 mmHg at 77°
Flash point	95°F	Vapor density	3.86
Specific gravity	1.21	Ionization potential
Lower explosive limit (LEL)	5.3%	Upper explosive limit (UEL)	14.5%
NFPA health rating	2	NFPA fire rating	3
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	D177
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	3 L
Sampling flow rate (TWA)^*	0.01-0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 1003 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media	Wipe with charcoal pad, seal in glass vial for shipment. [3M 3500]
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	1 ppm (5 mg/m³)	TLV-TWA	1 ppm [2003]	PEL-TWA	1 ppm (5 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: Not established		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, TLV-A4, EPA-B2; K		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 1,3-Dichloropropene

NIOSH: Pocket Guide to Chemical Hazards - 1,3-Dichloropropene

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,3-Dichloropropene. See annual publication for most recent information.

Last Updated Date : 12/14/2020

ISOBUTYL NITRITE

Chemical Identification
CAS #	542-56-3
Formula	C₄H₉NO₂
Synonyms	nitrous acid isobutyl ester; nitrous acid, 2-methylpropyl ester; Blackjack

Physical Properties
Physical description	Clear colorless to pale yellow liquid.
Boiling point	154.4°F	Molecular weight	103.12
Freezing point/melting point		Vapor pressure	10 mmHg
Flash point	-10°F	Vapor density	>1
Specific gravity	0.87 at 72°F	Ionization potential
Lower explosive limit (LEL)	1.2% at 70°F	Upper explosive limit (UEL)	26.9% at 70°F
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C	1 ppm [2000]	PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	N	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: BEI®		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Isobutyl nitrite

NIOSH: Pocket Guide to Chemical Hazards - Isobutyl nitrite

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Isobutyl nitrite. See annual publication for most recent information.

Last Updated Date : 12/31/2020

ETHYL AMYL KETONE (5-METHYL-3-HEPTANONE)†

Chemical Identification
CAS #	541-85-5; 106-68-3
Formula	C₈H₁₆O
Synonyms	amyl ethyl ketone; 3-octanone; 3-methyl-5-heptanone

Physical Properties
Physical description	Colorless liquid with a pungent odor.
Boiling point	315°F	Molecular weight	128.2
Freezing point/melting point	-70°F	Vapor pressure	2 mmHg
Flash point	115°F	Vapor density
Specific gravity	0.82	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1075
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	1-25 L
Sampling flow rate (TWA)^*	0.01-0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 1301 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Infrared spectrophotometer
Model/Type	Miran 1A & 1B
Sampling information (see manufacturer instructions)	1 ppm@9 µm

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	25 ppm (130 mg/m³)	REL-TWA	25 ppm (130 mg/m³)	TLV-TWA	10 ppm [2006]	PEL-TWA	25 ppm (130 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	100 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Ethyl amyl ketone

NIOSH: Pocket Guide to Chemical Hazards - 5-Methyl-3-heptanone

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Ethyl amyl ketone. See annual publication for most recent information.

Last Updated Date : 12/28/2020

NICOTINE†

Chemical Identification
CAS #	54-11-5
Formula	C₁₀H₁₄N₂
Synonyms	3-(1-methyl-2-pyrrolidyl)pyridine

Physical Properties
Physical description	Pale-yellow to dark-brown liquid with a fish-like odor when warm.
Boiling point	476.1°F at 745 mmHg	Molecular weight	162.2
Freezing point/melting point	-110°F	Vapor pressure	0.08 mmHg
Flash point	203°F	Vapor density	5.61
Specific gravity	1.01	Ionization potential	8.01 eV
Lower explosive limit (LEL)	0.7%	Upper explosive limit (UEL)	4.0%
NFPA health rating	3	NFPA fire rating	1
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1855
Sampling group
Sampler/Sampling media	XAD-4 tube (80/40 mg) [SKC 226-93]
Sampling time^*	480 min
Sampling volume (TWA)^*	0.5-600 L
Sampling flow rate (TWA)^*	0.1-1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-NPD
Method reference	NIOSH 2551 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	0.5 mg/m³	REL-TWA	0.5 mg/m³	TLV-TWA	0.05 mg/m³ [1992]	PEL-TWA	0.075 ppm (0.5 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	5 mg/m³
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - (-)-Nicotine

NIOSH: Pocket Guide to Chemical Hazards - Nicotine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Nicotine. See annual publication for most recent information.

Last Updated Date : 01/05/2021

TERT-BUTYL ACETATE†

Chemical Identification
CAS #	540-88-5
Formula	C₆H₁₂O₂
Synonyms	tert-butyl ester of acetic acid

Physical Properties
Physical description	Colorless liquid with a fruity odor.
Boiling point	208°F	Molecular weight	116.2
Freezing point/melting point		Vapor pressure
Flash point	72°F	Vapor density
Specific gravity	0.87	Ionization potential
Lower explosive limit (LEL)	1.5%	Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0442	0442
Sampling group	OVSG-1
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]	SKC 575-002 Passive Sampler [SKC 575-002]
Sampling time^*	240 min	240 min TWA; 15 min STEL
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID	GC-FID
Method reference	OSHA 5000 (fully validated)	OSHA 1009 (fully validated)
Notes		To obtain sampling and analytical error similar to that available with active sampling, knowledge of the atmospheric pressure and temperature are required, and these should be obtained using NIST-traceable devices. If that is not possible, temperature is assumed to be 22.2 °C, and the atmospheric pressure is estimated based on the elevation of the sampling location. When estimates are used in place of traceable measurements the sampling and analytical error associated with passive sampling is substantially increased, and this makes it more difficult to demonstrate overexposures after considering the 95% lower confidence limit.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	200 ppm (950 mg/m³)	REL-TWA	200 ppm (950 mg/m³)	TLV-TWA		PEL-TWA	200 ppm (950 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: Visit the ACGIH TLV site for specific data		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	1500 ppm
Carcinogenic classifications: Not listed		Notes: 10% of LEL
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Tert-butyl acetate

NIOSH: Pocket Guide to Chemical Hazards - tert-butyl acetate

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Butyl acetates, all isomers. See annual publication for most recent information.

Last Updated Date : 04/05/2024

Group Sampling Information
Sampling Media	Sampling Time (If there are exceptions they will be in Notes)	TWA Sampling Volume (If there are exceptions they will be in Notes)	TWA Flow Rate (If there are exceptions they will be in Notes)
CSC Tube (100/50 mg sections, 20/40 mesh), [SKC 226-01]	240 min	12 L	0.05 L/min

Analytes Sampling Information
Analytes	IMIS Code	Wipe Sampling
Isobutyl Acetate	1534	No
n-Butyl Acetate	0440	No
sec-Butyl Acetate	0441	No
tert-Butyl Acetate	0442	No
Toluene**	2460	No
Ethyl Benzene	1080	No
Perchloroethylene (Tetrachloroethylene)**	2020	No
Trichloroethylene**	2490	No
Xylene	2590	No
Trimethylbenzene	2505	No
Benzene***	0320	No
Ethyl Acetate****	1040	No
n-Propyl Acetate‡	2180	No
Pentane‡‡	1990	No
Cyclohexane‡‡‡	0810	No
Heptane*	1371	No
n-Hexane‡‡‡‡	1380	No
Nonane*	N807	No
Octane*	1957	No

Notes

Request any (up to three (3)) of these analytes together.

Alternatively request IMIS Code Q115 and SLTC will report any significant amounts of these analytes.

Results for unrequested analytes in this group will be reported if significant amount are found.

Toluene, sec-Butyl Acetate, Benzene and Isobutyl Alcohol all have/are known interferences. Please indicate on the 91A which of these compounds are known to be present.

There is no need to contact SLTC before sampling.

*80 min (4L)

**Peak sampling 1 min (0.05 L) and Ceiling sampling 5 min (0.25 L)

***STEL sampling 15 min (0.75 L)

****120 min (6 L)

‡200 min (10 L)

‡‡45 min (2.25 L)

‡‡‡190 min (9.5 L)

‡‡‡‡98 min (4.9 L)

1,2-DICHLOROETHYLENE, MIXED ISOMERS (ACETYLENE DICHLORIDE)†

Chemical Identification
CAS #	540-59-0
Formula	C₂H₂Cl₂
Synonyms	acetylene dichloride; cis-acetylene dichloride; trans-acetylene dichloride; sym-dichloroethylene

Physical Properties
Physical description	Colorless liquid (usually a mixture of the cis & trans isomers) with a slightly acrid, chloroform-like odor.
Boiling point	118-140°F	Molecular weight	97.0
Freezing point/melting point	-57 to -115°F	Vapor pressure	180-265 mmHg
Flash point	36-39°F	Vapor density	3.34
Specific gravity	1.27	Ionization potential	9.65 eV
Lower explosive limit (LEL)	5.6%	Upper explosive limit (UEL)	12.8%
NFPA health rating	1	NFPA fire rating	3
NFPA reactivity rating	2	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0870
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	3 L
Sampling flow rate (TWA)^*	0.01-0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 1003 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Detector tube	Detector tube	Detector tube
Model/Type	Matheson-Kitagawa 8014-145S	Matheson-Kitagawa 8014-180S	Gastec 139
Sampling information (see manufacturer instructions)	follow mfr instructions; approx 1-400 ppm range	follow mfr instructions; approx 2-1000 ppm range	0.5-2 strokes; 1-250 ppm range; 16.4% for 10-20 ppm, 8.2% for 20-100 ppm

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	200 ppm (790 mg/m³)	REL-TWA	200 ppm (790 mg/m³)	TLV-TWA		PEL-TWA	200 ppm (790 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: Visit the ACGIH TLV site for specific data		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	1000 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 1,2-Dichloroethylene, (mixed isomers)

NIOSH: Pocket Guide to Chemical Hazards - 1,2-Dichloroethylene

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,2-Dichloroethylene, all isomers. See annual publication for most recent information.
(light-headedness, dizziness, euphoria, nausea, vomiting, weakness, tremor, epigastric cramps; dermatitis)
Krentz, D.M., Mailey, L.A.: Dichloroethylene, 1,2-. In: Encyclopedia of Toxicology, Vol. 1, Wexler, P., ed. New York: Academic Press, pp. 465-467, 1998.
(dermatitis/ transient renal effects)
Sitting, M.: 1,2-Dichloroethylene. Handbook of Toxic and Hazardous Chemical and Carcinogens, 3rd Ed., Vol. 1, pp. 570-573, 1991.
Occupational Health Guidelines for Chemical Hazards. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1981, January). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.

Last Updated Date : 03/25/2024

2-ACETYLAMINOFLUORENE‡

Chemical Identification
CAS #	53-96-3
Formula	C₁₅H₁₃NO
Synonyms	AAF; 2-AAF; 2-acetaminofluorene; N-acetyl-2-aminofluorene; FAA; 2-FAA; 2-fluorenylacetamide

Physical Properties
Physical description	Tan, crystalline powder.
Boiling point		Molecular weight	223.28
Freezing point/melting point	381°F	Vapor pressure	0.00023 mmHg
Flash point		Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	Ca	REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	Y
Notes: See 29 CFR 1910.1003, 13 Carcinogens.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes: Not established		Notes: See California Code of Regulations, Title 8, Section 5209. Carcinogens.
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: NIOSH-Ca, NTP-R, OSHA-Ca		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 2-Acetylaminofluorene

NIOSH: Pocket Guide to Chemical Hazards - 2-Acetylaminofluorene

Literature References

Last Updated Date : 12/15/2020

MAGNESITE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CYCLOPENTADIENE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

BIS(CHLOROMETHYL) ETHER‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,3-DICHLOROPROPENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ISOBUTYL NITRITE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ETHYL AMYL KETONE (5-METHYL-3-HEPTANONE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

NICOTINE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TERT-BUTYL ACETATE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,2-DICHLOROETHYLENE, MIXED ISOMERS (ACETYLENE DICHLORIDE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-ACETYLAMINOFLUORENE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References